Peter mubray



r.. Tu Y, A R R U M R ROTARY FAN.

f z a ATTORNEYS N, PETERS. Plmwinnngmplmr. wnshingmn. Dv C.

PETER MURRAY, JR.,

MANUFACTURING GOMl.D

qltLxTnNT j Orricn.

OF NElVARK, NEW JERSEY, ASSIGNOR TO 'THE BAOKUS ANY, OF SAME PLACE.

ROTARY FAN.

EPECIETCATION forming part of Letters Patent No. 348,68

Application filed May 12, 1886.

To all whom, it may concern,.-

Beit known that I, PETER MURRAY, J r., of Newark, in the county of Essexand State of New Jersey, have invented certain new and usefulImprovements in Rotary Fans, of which the following is a specification.

This invention relates to a rotary fan-shaft of that class which issuspended by a suitable hanger-frame from the ceiling, so as to venti-Io late counting-rooms, stores, restaurants, and similar places; andtheinvention consists of a hanger-frame attached to the ceiling, atubular fan-shaft supported in bearings of said hanger-frame, a fauattached to the lower end of said fan-shaft, a iixed rod passing throughthe tubular fan-shaft, and provided at the lower end with means forraising or lowering` the tubular fan-shaft and throwing a friction-diskat its upper end in and out of mesh with a 2o friction-disk shaftsupported in bearings pivoted to one of the legs of the hanger-frame.

In the accompanying drawings, Figure l represents a side elevation of myimproved rotary fan, and Fig. 2 is a vertical central section of thesame. y

Similar letters of reference indicate corresponding parts.

A in the drawings repr ing hanger-frame, w

esents the supporthich is made of any approved construction, andattached rigidly to the ceiling. The hanger-frame A is provided withbearings I) Z) for the tubular fan-shaft B, to the lower cud of whichthe fan O is attached. The driving-shaft l) is supported in hangers 3 5(not shown in the drawings) near the ceiling and in a pivoted tubularbearing, D', pivoted to lugs of one of the legs of the hanger-frame, asshown in Fig. l. rlhe pivoted bearing D facilitates the alignment oi'the shaft and pre- .lo vents the binding of the shalt, wherebyunnecessary friction is caused. Its use also saves time in securing thehanger-frame to and adjusting it on the ceiling. A beveled frictiondisk,d, is keyed tothe driving-shaft D, and arranged to mesh with afriction-disk, d', at the upper end of the tubular fan-shaft B. Throughthe yfan-shaft B passes a fixed center rod, E, th et-arm, c, 5o A, or toany The fixed rod E at is attached to a horizontal brackcast integralwith the hanger-frame other suitable point of support. extends below thelower end sleevej' is lowere 3, dated September 7,1886.

Serial No. 201,930. (No model.)

of the tubular fan-shaft B, and asliding sleeve, j", that is gui on afixed pin,j", of the rod E'. Ascrewbutton, g, engages the screw-threadedlower end of the rod E, and serves to raise or lower the sleeve f, andthereby the tubular fan-shaft B, according as the fan is to be stoppedor ro tated. As the sleeve f is prevented from rotating by the pinf, itserves to support the 6o fan-shaft without interfering with the 'screw'-button g, so as to cause the shifting or detaching of the same. Byturning the button g on the lower end of the rod E lthe sleeve f, andthereby the tubular fanshaft B, is raised, so that themotion-transmitting friction-disks d d' are thrown in mesh with cachother for rotating the fan O, while, by turning the butt-on g inopposite direction on the iixed rod E', the

d on the rod E, so that the 7o friction-disks d d are thrown out of meshand the motion of the fan interrupted. ln this manner a con'iparativelysimple construction of rotary fan-shaft is obtained, which can bereadily thrown in or out of motion, as required. 7 5

Having thus described myinvention, l claim as new and desire to secureby Letters Patent-4 1. The combination, with a hanger-frame suspendedfrom the ceiling, of a driving-shaft and a tubular bearing pivoted toone of the 8o' legs of the hanger-frame, the said leg being providedwith bearings for the pivots of the above mentioned tubular bearing,substantially as set forth.

2. The combination of a supporting hanger-frame,a tubular fau-shaftsupported in bearings ot said hanger-frame, a i'an attached to d ol`said fanshaft, a fixed center is provided with ded by a slot, j",

the lower en rod passing through said tubular fan-shaft, adriving-shaft, a frictioirgear for transmitting 9@ the motion of thedriving-shaft to the fan-shaft,

and means whereby the tubular fanshaft is raised or lowered on the fixedcenter rod, so

as to throw the friction-gear in or out of mesh and rotate or stop thefan, substantially as set forth.

8. 'The combination of asupporting hangen frame having a horizontalbracket-arm, a tu-l bular fan-shaft supported in bearings of said frame,a fan attached to the lower end of said 10e fan-shaft, a iixed centerrod passing through said tubular fan-shaft and attached to thebrnoketorm of the hanger-frame, a driving- In testimony that I claim theforegoing` ns [o shaft, L friction-goor for transmitting motion myinvention I have signed my immo in pros from the drivi ng-sl1aft to thefan-shaft, a sleeve @noo ol l two subscribing witnesses.

guided at the lower end of the xed rod, and

5 a screw-bntiton at tho lower end of the xed PETER MURRAY, JR.

rod7 said screw-button being adopted to raise or lower the sleeve andfan-shalt and throw ITitnesses: the latter in or out of gear,snbsbautiallyas seb MARTIN PETRY, forth. SIDNEY MANN.

